Attachment 1
ATTACHMENT 1
Sample Scenarios of Speed Limit Reductions from the 85th percentile Speeds
The chart below includes examples showing applicability of rounding and additional speed reductions if justified by an engineering and traffic survey:
Effective
June 30, 2024
Free-flow
85th
Percentile
Speed (MPH)
Rounded to
nearest 5 MPH
increment (CVC
22358.6a)
If rounding to
nearest is up,
may round down
(CVC 22358.6c)
If rounding to
nearest is
down, may
additionally
lower by 5 MPH
(CVC 22358.6b)
If safety corridor or
adjacent to high
concentration of
bicyclists &
pedestrians, may
additionally lower
by 5 MPH (CVC
22358.7)*
42.5-45.0 45 40 n/a 35
40.1-42.4 40 n/a 35 30
37.5-40.0 40 35 n/a 30
35.1-37.4 35 n/a 30 25
32.5-35.0 35 30 n/a 25
30.1-32.4 30 n/a 25 20
27.5-30.0 30 25 n/a 20
25.1-27.4 25 n/a 20 15
22.5-25.0 25 20 n/a 15
20.1-22.4 20 n/a 15 -
17.5-20.00 20 15 n/a -